Those are bed sores. Similar to people that sit in bed for lengths of time. It's ok, Apple isn't coming to take your watch away! You can take it off and wash your arm with soap and water. Important dry yourself thoroughly. Then wash the band with soap and water and once again dry it thoroughly. Wait a day or two, maybe wash your hand again and dry thoroughly. Then try the watch again. But don't forget, it's a good idea to wash your hands several times underneath the watch band daily. Btw the hideous plastic case is on there because I'm a plumber. I wash my hands many times and never have an allergic reaction, and I work with poo!!!! The case is hideous but protects ok, I plan to use the spigen armor when it comes. Yes it will be even more hideous but better than getting off work and having a scratched ss case.